New Mars (Beta Virginis System) a small cold MesoCryoJovian world
Small to medium sized gas giants, formed where there is not enough material to form a MesoJovian or SuperJovian world.
Many worlds of this type are outer system cryojovian worlds like Neptune and Uranus, but subjovians of this size range can be found at any temperature, since (like any other gas giant) they will migrate inwards due to friction with the protoplanetary disk and gravitational interaction with smaller bodies. However when small gas giants of this kind encounter other giants, they may be flung outwards into more distant orbits, occasionally even exchanging orbits with other giants.